... LEDs Bike Light 1. Size:12.1*6.4*3.7 cm,weight:77.4g 2. Battery:3*AAA 3. Material:silica ... gel+PP 4. Good for promotion gift 4 LEDs Bike Light1. Size:12.1 ... *6.4*3.7 cm,weight:77.4g2. Battery:3*AAA3. Material:silica ... seatpost, helmet, wheel, bag and so on ** Powered by 3*AAA (included)** Available colours,White, Black, Red, Blue ** Weight: ...